Programs

This program makes Motorka - LEGO SPIKE Prime motorbike robot move in the form of an 8 (or infinity sign:))! It uses the other program for the robot as a base, but instead of letting the steering free, this program controls it so that the robot moves in a shape!

This program is a solution to the lack of a differential on the robot, which makes its turns slower and bigger! The program reads the realtive angle of the front motor, used for steering, and feeds it to the back motors so as to make one go faster and one slower! This makes the robot turn much faster and smoother. The program requires for someone to turn the steering motor, so experiment with different turning angles and push the limits of the robot! Make sure the markings on the moving and non-moving parts of the front motor align, because that is an essential part of the program!

This program is for the target part of Pallo. It consists of a piston with different colored sections, which are detected by a color sensor. The beginning of the piston is a green section, so the program waits for that to change, meaning that the target has been hit, and then it celebrates! The celebration is pretty simple, it measures the color of the new section, which can give us how accurately the target has been hit, and lights the center button with that color! Additionally it writes "YAY" on the screen of the hub. Feel free to improve it however you like!

This program is for Calix - LEGO SPIKE Prime carrying robot. The robot is made to carry an object while following a black line. This is probably one of the first thought that comes to mind when you think of robotics - A robot that can help at home! This robot is made as a first try at this concept. It can move not too heavy objects from one room to the other, following a black line. The program does the following: First it waits for you to put something on the robot and to click the left or right hub buttons. After that it lifts the item a bit and starts following a black line. It follows the line until it sees the same color for more than 3 seconds, thats how the robot knows it has reached the end of the line! After that it rises whatever it is carrying and waits while keeping the object up.

This program makes the Tohuru – LEGO SPIKE Prime Owl Robot move like an owl! But what does an owl move like? Well, we figured a key part of an owl’s behavior is firmly holding onto a branch. So, the first part of the program makes the robot grip tightly onto whatever is between its two wheels. After that, the owl begins spinning its head and searches for the closest object. Once it finds something, it stares at it—menacingly—until it moves away!

This program makes the Big Wheelster – LEGO SPIKE Prime robot move forward until it bumps into something! This robot features one big wheel powered by two Medium Motors. What’s interesting is that the motors must spin in opposite directions to make the wheel rotate. That’s why we’ve created a My Block to control the robot.

The My Block allows you to set how far the robot should move—either a specific number of rotations or indefinitely (by setting it to 0 rotations). It also includes a logic option for direction: use 1 for forward and 0 for backward.

When the robot detects a bump using the front touch sensor, the program makes it reverse using the back wheels, helping it avoid hitting the same obstacle again!

This program makes the Swing Game - LEGO SPIKE Prime robot move the two LEGO figures based on input from their respective controllers.

The color sensor controller uses the colored plate above it to determine movement. If the sensor detects blue, the LEGO figure moves forward. If it detects purple, the figure moves backward. Any other color will make it stop.

The motor controller works similarly. If the motor turns more than 30 degrees forward, the LEGO figure moves forward. If it turns more than 30 degrees backward, the figure moves backward. If it stays within that range, the figure stops.

The goal of the game is for both LEGO figures to reach the center without tipping the swing to either side. Good luck—and have fun!

This program makes Larvy - LEGO SPIKE Prime larva robot move forward indefinitely! The movement of this robot is very interesting as it works like a caterpillar or larvae! The program works by repeating 3 movements every cycle of the loop:

1. the front motor rotates for 90 degrees, rising or collapsing its wheels
2. the large motor rotates for 90 degrees, contracting or expanding the robot
3. the back motor rotates for 90 degrees, rising or collapsing its wheels

You may notice that every movement command does two things, or the same thing but a different direction. That is done using a variable that is either 1 or -1, and that gives the direction that the motors should move. This variable is also used to determine which motor should use full power and which shouldn't so that the robot doesn't break itself!

This program is for Susan and Mark - a LEGO Mindstorms EV3 T-Rex chasing a car. The program makes the T-Rex wait for the car to reach a certain speed, and then attack it. This is made to resemble the T-Rex's said inability to see slow moving things. The goal of the program is to get the car's cable to stretch, while moving it by hand, when its wheels are turning and without the T-Rex noticing. The detection is made using the current power option on the motor rotation sensor.

This program is for Cardiidae - a LEGO Mindstorms EV3 Clam robot. It provides a solution for the final tasks in Lesson 1, level D1. It makes the clam robot detect when it is being opened and then to close itself.

The robot is available at /materials/662-ev3-finger-bot

 

Calibration program written in EV3-G

This is an LEGO Mindstorms EV3-G program for the motor and touch sensor that we use for the LEGO Catapult

Mindstorms EV3-G program for running the LEGO catapult robot

NXT-G program for running the Catapult robot build from the LEGO Mindstorms NXT robotics set